12345677774 has 4 divisors (see below), whose sum is σ = 18518516664. Its totient is φ = 6172838886.

The previous prime is 12345677761. The next prime is 12345677819. The reversal of 12345677774 is 47777654321.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3086419442 + ... + 3086419445.

It is an arithmetic number, because the mean of its divisors is an integer number (4629629166).

Almost surely, 2^12345677774 is an apocalyptic number.

12345677774 is a deficient number, since it is larger than the sum of its proper divisors (6172838890).

12345677774 is an equidigital number, since it uses as much as digits as its factorization.

12345677774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172838889.

The product of its digits is 6914880, while the sum is 53.

The spelling of 12345677774 in words is "twelve billion, three hundred forty-five million, six hundred seventy-seven thousand, seven hundred seventy-four".